abc7 news kate larsson explains what you need to know before you head to the grocery store. >> we may have some helicopter noise in the background because we're only about a quarter mile from the fire. >> reporter: corey manning is the owner of trace alamos farm in healdsburg. tomatoes, melons, peppers, corn and pumpkins are covered in ash. >> a lot of the ash is mixed between trees, but also from people's homes and you don't want to have any of those kinds of things on your fruit or vegetables. we rinse everything off well, but we don't have the labor for that. >> reporter: translated for your trip to the grocery store? >> there could be potentially damaged product. of course you want to wash it as best you can. the apples are from sebastopol, california. >> reporter: they specialize in local produce. washing soot coated fruits and veggies is a simpler problem than another looming issue. produce prices haven't gone up yet, but they say because of supply and demand issues created by covid and the fires, that could all change. >> the prices could go up potentially. not just produce, bu